7 P 2 3

Energy like mass can not be _______________.

• created or destroyed

• created or played

• bothered 

• choose another answer not this one ok.

Tags

NGSS.MS-PS1-5

What is an insulator?

• The area of a conductor through which a current is able to move

• A material which does not allow electricity to go through it

• The amount of devices which are in a circuit

• A battery or other device which provides energy for a circuit

The 3 main parts of a series circuit are:

• battery, device, conductor

• battery, fuse, switch

• light bulb, glass, on/off button

• plastic, bulb, wires

Which best explains why burning wood is a chemical change?

• The process occurs quickly.

• The process can be reversed.

• The process can be repeated.

• The process creates a new substance.

Tags

NGSS.MS-PS1-2

Which type of change occurs when the size, shape, appearance, or

volume of a substance is changed without changing its composition?

• physical

• chemical

• radiation

• nuclear

Which statement best describes why baking a cake is an example of a chemical change?

• The process takes place in an oven.

• The process requires heat energy.

• The process cannot be reversed.

• The process can be repeated.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which best explains why burning leaves is a chemical change?

• The leaves emit light during the change.

• The temperature of the leaves increases.

• The shape of the leaves changes.

• The leaves turn to ashes.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which best explains why boiling water is an example of a physical change?

• The heat causes steam.

• Heat is added, causing evaporation.

• Heating the water causes solids to form.

• The water changes from a liquid to a gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What best explains the physical change of liquid water to ice?

• The liquid water was frozen.

• The liquid water was heated.

• The liquid water was melted.

• The liquid water was condensed.

Tags

NGSS.MS-PS1-4

When coffee is poured into a cup of ice, the ice begins to melt and mix with the coffee. Which statement best describes this change?

• The ice melting is a chemical change because the water changes

  form.

• The ice melting is a physical change because the water may be frozen

  again.

• The water and coffee mixing is a chemical change because the liquids

  change color.

• The water and coffee mixing is a physical change because the mixture

  forms bubbles.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4